Perhaps you should try some spelling variations:
van tuan » van ban, anh tuan
van quan » van ban
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
va hanh » van hanh, va thanh, va danh
luu tre » luu tru, cuu tre, luy tre
te san » te ban, ke san, tu san
san ky » sang ky, van ky, dan ky
ha hoi » hoa hoi, ha noi, xa hoi
soc va » hoc va, loc va, doc va
vi luu » vi lua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te san ky lang ha hoi. hieu ((van tuan) or (van quan)) soc va hanh vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te san ky lang ha hoi. hieu ((van tuan) OR (van quan)) soc va hanh vi luu tre.
• Adding a wildcard symbol may retrieve word variants: te san ky lang ha hoi. hieu ((van tuan) or (van quan)) soc va hanh vi luu tre*.